Tools – Wrench – screwdriver – or driver therefor – Handle clutched to head
Reexamination Certificate
2005-07-05
2005-07-05
Smith, James G. (Department: 3723)
Tools
Wrench, screwdriver, or driver therefor
Handle clutched to head
C081S062000, C192S043200
Reexamination Certificate
active
06912935
ABSTRACT:
A ratchet tool includes a head with an engaging member rotatably received in a hole in the head and a recess is defined in an inner periphery of the hole so as to receive a pawl therein. A chamber is defined in a side of the head and communicates with the recess. A knob is rotatably received in the chamber and a biasing member is connected between the pawl and the knob. The biasing member is a V-shaped member and includes two insertions which are connected to a side of the pawl, and a peak portion which is securely connected to a protrusion extending eccentrically from an inside of the knob. The pawl is shifted by the biasing member when rotating the knob.
REFERENCES:
patent: 3269496 (1966-08-01), Kilness
patent: 5231903 (1993-08-01), Bockman, Jr.
patent: 5957009 (1999-09-01), McCann
patent: 6516692 (2003-02-01), Hsien
patent: 6609444 (2003-08-01), Hsien
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